Home / 20,643,450.82-28,445,985.30-15,968,848.98

Finding the Fourth Proportional to 20,643,450.82, 28,445,985.30 and 15,968,848.98

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Solution

The fourth proportional to 20,643,450.82, 28,445,985.30 and 15,968,848.98 is: 22,004,540.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,643,450.82 : 28,445,985.30 = 15,968,848.98 : x
  2. Step 2: Convert to fraction form
    20,643,450.82/28,445,985.30 = 15,968,848.98/x
  3. Step 3: Cross multiply
    20,643,450.82x = 28,445,985.30 × 15,968,848.98
  4. Step 4: Simplify right side
    20,643,450.82x = 454,249,643,509,555.62
  5. Step 5: Solve for x
    x = 454,249,643,509,555.62/20,643,450.82
  6. Step 6: Final answer
    x = 22,004,540.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.